INDUCED ABSORPTION SPECTRA OF THE FUNDAMENTAL BAND OF $D_{2}$ IN $D_{2}-CO$ AND $D_{2}-N_{2}$
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Date
2000
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Ohio State University
Abstract
The collision-induced infrared fundamental band of $D_{2}$ in $D_{2}-CO$ and $D_{2}-N_{2}$ binary mixtures were recorded at 298 K with a sample pathlength of 105.2 cm at various densities of the binary mixtures up to 115 amagat for several base densities of $D_{2}$. Binary and ternary absorption coefficients were obtained from the measured integrated absorption coefficients. The spectra have been interpreted in terms of the overlap transitions $Q_{ov}(J), J=0$ to 5 and by the following quadrupolar double transitions of $D_{2}+CO$ and $D_{2}+N_{2}: O_{1}(J)(D_{2})+Q_{0}(J)(CO/N_{2}), Q_{1}(J)(D_{2})+Q_{0}(J)(CO/N_{2}), S_{1}(J)(D_{2})+Q_{0}(J)(CO/N_{2})$, and $Q_{1}(J)(D_{2})+S_{0}(J)(CO/N_{2})$. Analysis of the absorption profiles was performed by assuming appropriate line-shape functions and characteristic half-width parameters $\delta_{d}$ and $\delta_{c}$ of the overlap transitions and $\delta_{q}$ of the quadrupolar $transitions^{a}$
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$^{a}$ See S. P. Reddy, ``Phenomena Induced by Intermolecular Interactions'' edited by G. Birnbaum, Plenum, New York, 1985.
Author Institution: Department of Physics and Physical Oceanography, Memorial University of Newfoundland
Author Institution: Department of Physics and Physical Oceanography, Memorial University of Newfoundland